Tricycle frame



FIG. 1 is a left, rear perspective view of a tricycle frame showing our new design.

FIG. 2 is a left side elevation view of the tricycle frame of FIG. 1.

FIG. 3 is a right side elevation view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a front elevation view thereof.

FIG. 7 is a rear elevation view thereof.

FIG. 8 is a left, rear perspective view of another embodiment of our new design including a rear tire set.

FIG. 9 is a left side elevation view of the tricycle frame and rear tire set of FIG. 8.

FIG. 10 is a right side elevation view thereof.

FIG. 11 is a top plan view thereof.

FIG. 12 is a bottom plan view thereof.

FIG. 13 is a front elevation view thereof; and,

FIG. 14 is a rear elevation view thereof.

The wheels, forks, handlebars and other tricycle parts shown in broken lines in FIGS. 1-7 illustrate environmental structure and form no part of the claimed design.

The wheels shown in broken lines in FIGS. 8-14 illustrate environmental structure and form no part of the claimed design. 

The ornamental design for a tricycle frame, as shown and described. 